Search over 10,000 free study notes

Tropomyosin is a protein that covers the actin binding site. This prevents a cross-bridge forming between the myosin and actin filaments whilst the muscle is at rest. Calcium ions bind to troponin molecul...

High cholesterol diets lead to high cholesterol levels in the blood. Low density lipoproteins, known as LDLs or BAD-cholesterol, build up in the artery walls. They form solid plaques which narrow the arte...

Reduced NAD/FAD from previous stages of respiration (glycolysis, link reaction, Krebs cycle) relocate from the mitochondrial matrix to the inner mitochondrial membrane. At this point they are oxidised, lo...

The nucleus contains genetic material which controls the activities of a cell

A vaccine contains a dead or inactive (an therefore harmless) form of a pathogen. By injecting this into the body, an immune response is triggered and white blood cells produce antibodies specific to the ...